logo logo International Journal of Educational Methodology

IJEM is a leading, peer-reviewed, open access, research journal that provides an online forum for studies in education, by and for scholars and practitioners, worldwide.

Subscribe to

Receive Email Alerts

for special events, calls for papers, and professional development opportunities.

Subscribe

Publisher (HQ)

RHAPSODE LTD
Eurasian Society of Educational Research
College House, 2nd Floor 17 King Edwards Road, Ruislip, London, UK. HA4 7AE
RHAPSODE LTD
Headquarters
College House, 2nd Floor 17 King Edwards Road, Ruislip, London, UK. HA4 7AE

'reliability analysis' Search Results



The Effect of Mosaic Based Approach on Involvement Levels of Children

involvement mosaic approach preschool education

Tugce Akyol , Nefise Semra Erkan


...

This study was conducted to explore the effect of mosaic based approach on children’s involvement levels. In this study, experimental design with pre-test post-test retention control groups was adopted. A total of 52 children from two pre-schools formed the sample of this study. A total of 26 children, 11 girls and 15 boys, attending first pre-school in the afternoon formed the experimental group, and total of 26 children, 11 girls and 15 boys, attending second pre-school in the afternoon formed the control group. In this experimental design, “General Information Form” to collect information about the children and parents together with the Turkish adaptation of “Leuven Involvement Scale for Young Children” to assess children’s involvement levels. Children in the experimental children group received mosaic-based instruction 3 days weekly, for approximately 4 hour each day, for a total of 10 weeks. The data were analyzed by using the Mann Whitney U, Friedman’s Two-Way ANOVA Test and Wilcoxon Signed Rank Test. The results showed that mosaic-based approach created a significant difference in the involvement levels of experimental group respectively (p<0.05).

description Abstract
visibility View cloud_download PDF
10.12973/ijem.4.4.303
Pages: 303-309
cloud_download 697
visibility 955
0
Article Metrics
Views
697
Download
955
Citations
Crossref
0

...

The purpose of this research is to assess the sports and socialization of the students studying in different sports branches in Gumushane University. “Socialization- Sports and Socialization Scale” developed by Sahan was used in this research. A total of 742 students composed of 316 females and 426 males studying in Gumushane University participated in this survey modelled research. Data obtained were evaluated in SPSS package program. Reliability coefficient of the scale was found to be 0.896. T-Test, Kruskall Wallis and Anova were used in statistical assessment of data. Pearson Product-Moment Correlation analysis was used to determine whether there was a significant relation between socialization and sports-socialization scores and the causal relations between two variables were tested with simple linear regression analysis. The study was analyzed in terms of certain variables and it was concluded that the variables of gender, age, place of residence and type of sports done by the participants didn’t make a difference on sports-socialization and socialization scores. It is also observed that there is a positive and significant relation between the variables of socialization and sports-socialization (r= .624, p<.01). In other words, it can be stated that the higher the socialization scores of the participants are, the higher their sports-socialization scores become, accordingly.  

description Abstract
visibility View cloud_download PDF
10.12973/ijem.4.2.95
Pages: 95-100
cloud_download 642
visibility 870
2
Article Metrics
Views
642
Download
870
Citations
Crossref
2

...

The first step towards discussing a phenomenon or a concept in depth and with powerful scientific principles and methodology is to develop, adapt and utilize tools that accurately measure and discover the problem. For this purpose, the present study concentrated on paternalistic leadership, which is a new concept in the field of management, and reliability and validity studies on the scale (PLS) that was used to assess paternalistic leadership by Cheng et al. (2004) were conducted to add the scale to the national literature. The study was conducted on the data collected from 326 (EFA) + 255 (CFA) research assistants to determine the validity of the scale. In a determination of the reliability of the scale, item-total point correlations and Cronbach’s Alpha internal consistency coefficient were used. In order to determine how the scale works in different cultural and qualitative samples, the adaptation version was discussed by comparing with the previous factor analysis studies of the PLS. The analysis showed that adaptation version of the PLS, with the structure of its 3 sub-dimensional and 23-items, will able to be used in studies aiming to determine the characteristics of paternalistic leadership in the organizational structure and management processes of universities for the researchers working in the field of higher education.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.4.4.267
Pages: 267-285
cloud_download 496
visibility 1103
2
Article Metrics
Views
496
Download
1103
Citations
Crossref
2

...

This study aims to conduct Turkish adaptation, validity and reliability studies of the Teacher Rating Scales of Early Academic Competence. This study also aims to examine and improve early academic competence thoroughly on the basis of teachers’ ratings in Turkey, and lastly to contribute an assessment and measurement instrument to the literature which will enable to conduct further research in the field. This study was designed in a general survey model. The study included normally developing 619 36-72 month-old preschoolers attending to nursery classes and kindergartens affiliated to Afyonkarahisar Ministry of National Education in 2015-2016 academic year. The validity and reliability studies of the data obtained following the implementation of TRS-EAC, was completed. The Cronbach Alpha, split half test, test-retest reliability of the scale and its subscales were measured. TRS-EAC was found to be valid and reliable for 36-72 month-old children. It can be considered that the various studies that can be used TRS-EAC in Turkey will provide important contributions to the measurement power of this test.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.1.43
Pages: 43-57
cloud_download 590
visibility 879
2
Article Metrics
Views
590
Download
879
Citations
Crossref
2

Scopus

...

This research was conducted to investigate the predictive role of homophobia and unconditional self-acceptance on respect of differences in psychological counselor candidates. Participants were 239 psychological counselor candidates. The Respect of Differences Scale, the Homophobia Scale, and the Unconditional Self-Acceptance Scale were used to collect the data. Path analysis was used to determine the influences of variables on respect of differences. The independent sample t-test and one-way ANOVA were used to determine differences between participants in terms of gender and grade. The results of the analysis indicated that homophobia and unconditional self-acceptance are predictors of respect of differences, and place of living and traditionally have an indirect effect on respect of differences. In addition, female participants reported a higher level of respect of differences than male participants. Similarly, first year college students reported a higher level of respect of differences than fourth year college students.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.1.59
Pages: 59-70
cloud_download 529
visibility 939
2
Article Metrics
Views
529
Download
939
Citations
Crossref
2

Scopus

...

The aim of the study is to examine the pre-service teachers’ problem solving skills and curiosity levels according to different variables and to determine whether there is a relationship between them. The research was designed as a descriptive study in the survey model. The sample of the study consists of 1st and 4th grade pre-service teachers in the departments of German, Science, English, Mathematics, Music, Pre-school, Painting, English, Mathematics, Turkish Language Teaching at a university in Turkey. “Curiosity Scale” adapted into Turkish by Demirel and Diker Coskun, “Problem Solving Inventory” adapted into Turkish by Sahin, Sahin and Heppner  and “Personal Information Form” prepared by the researcher were used as data collection tools. In the analysis of the data obtained, SPSS-Windows 22.00 package program was used and descriptive statistics and parametric tests were applied in accordance with the sub-problems of the study. In addition, a correlation analysis was conducted to determine whether there was a relationship between pre-service teachers’ problem solving skills and curiosity levels. Based on the findings, suggestions about the problem solving skills and curiosity levels of the prospective teachers were presented.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.1.163
Pages: 151-164
cloud_download 661
visibility 1007
3
Article Metrics
Views
661
Download
1007
Citations
Crossref
3

Scopus

Developing an Entrepreneurship Scale for 5th Grade Students

entrepreneurship entrepreneurship scale developing scale 5th grade students

Gokhan Sontay , Hale Yetim , Sevilay Karamustafaoglu , Orhan Karamustafaoglu


...

The aim of this study is to develop an Entrepreneurship Scale to measure the entrepreneurial skills of 5th grade students and to conduct the reliability and validity of the scale. This research is a descriptive survey method. The pilot application was made with 432 students in Amasya City in Turkey. SPSS 23 and LISREL 8.80 programs were used to analyze the data. Exploratory and confirmatory factor analysis was performed to construct the validity. As a result of exploratory factor analysis, a 4-factor structure emerged on the scale. Confirmatory factor analysis confirmed the structure, and it was determined that the developed model was in compliance with the criteria in the literature. These sub-factors were identified as meaningful in terms of self-confidence, need for success, personal benefit and leadership and responsibility. The Cronbach Alpha internal consistency coefficient of the scale was determined as 0.77. At the end of the research, a reliable and valid measurement scale about entrepreneurship was developed for the 5th grade students.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.2.203
Pages: 203-220
cloud_download 690
visibility 1042
7
Article Metrics
Views
690
Download
1042
Citations
Crossref
7

Scopus

...

The current study investigated the opinions of secondary school students taking the science course from different science teachers about the science course and science teachers. The current study was conducted with the participation of 32 students instructed by different science teachers and attending different secondary schools in the fall term of 2018-2019 academic year. The data of the current study were collected by means of semi-structured interviews. In the analysis of the data, the descriptive analysis technique was used. The findings of the current study have revealed that high majority of the students love their science classes and science teachers, that in science classes, lecturing, question-answer and note-taking are methods widely employed, that if there is a smart board in the class, then Okulistik or EBA computer program is on, that the assignments given are from the textbook, that the most frequently adopted behavior by the teachers in the face of any discipline problem is warning and that informal learning environments are not used much. Moreover, it was found that projects are rarely assigned to students and the projects assigned are given as homework. A great majority of the students expect their teachers to be entertaining, they want their lessons to be instructed through games and experiments, and they do not want to write a lot in their classes.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.2.221
Pages: 221-233
cloud_download 768
visibility 1007
3
Article Metrics
Views
768
Download
1007
Citations
Crossref
3

Scopus

...

In this study, it is aimed to examine the relationship between prospective teachers' occupational anxiety and technological pedagogical content knowledge. Correlational model was used in this study. The participants consisted of 481 prospective teachers studying at Sakarya University Faculty of Education in the spring term of 2018-2019 academic year. Technological Pedagogical Content Knowledge Scale (TPACKS) and Occupational Anxiety Scale (OAS) were used as data collection instruments. As a result of canonical correlation analysis, it was determined that technological pedagogical content knowledge affects occupational anxiety by 62%.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.3.407
Pages: 407-420
cloud_download 606
visibility 1012
2
Article Metrics
Views
606
Download
1012
Citations
Crossref
2

Scopus

...

Computational thinking is a way of thinking that covers 21st century skills and includes new generation concepts such as robotics, coding, informatics and information construction. Computational thinking has reached an important point especially in the field of science in line with the rapid developments in technology. Robotics applications, software-based activities, STEM (Science, Technology, Engineering, Math) education and problem-based studies are some of the areas where this thinking is used. In this study, which is based on this point, it is aimed to develop a scale for computational thinking. Exploratory sequential design, one of the mixed research methods, was used in the study. First of all, a detailed literature review was conducted and needs analysis was carried out. This study consists of two stages. In the first stage, exploratory factor analysis was performed and analyzed with SPSS 23 program. In the second stage, confirmatory factor analysis was performed and analyzed with LISREL 9.2 program. As a result of the study, the goodness of fit indexes of the scale was found. According to this; X2/df value 1.81; NNFI value 0.97; NFI value 0.93; CFI value 0.98; RMR value 0.05; SRMR value 0.04; AGFI value 0.91 and GFI value was found to be 0.93. When the reliability values of the study were examined, Cronbach’s Alpha value was found to be 0.86. As a result of the research, a computational thinking scale consisting of 3 factors and 30 items was developed. This scale was developed for prospective teachers and can be used at all levels of prospective teachers.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.3.421
Pages: 421-432
cloud_download 1836
visibility 2098
7
Article Metrics
Views
1836
Download
2098
Citations
Crossref
7

Scopus

...

The aim of this study is to compare 2018 Science Course Curriculum (SCC), 2015 Trends in International Mathematics and Science Study (TIMSS) and 2018 High School Entrance Examination (HSE) in terms of content domains, cognitive domains and learning objectives. Qualitative research method, was used in this study. Data were analyzed using document review matrices to determine the similarities and differences between the objectives of SCC, TIMSS and HSE. SCC outcomes and HSE science questions were also classified according to TIMSS cognitive domains. Results show that the learning objectives of the fields of Physics, Biology and Earth Sciences of TIMSS are compatible with those of all grade levels of SCC and that the objectives of Chemistry are compatible with those of the seventh and eighth grades. Most of HSE questions are compatible with the objectives of SCC, however, the latest revision in the curriculum has introduced some eighth grade objectives to other grade levels. HSE science questions measure higher-level skills than TIMSS science questions. The subject domain of the “Organisms and Life” of SCC has the most learning objectives in the levels of “knowing” and “reasoning” while the subject domain of the “Physical Events” has the most learning objectives in the levels of “applying.” Besides, the seventh-, fifth- and eighth-graders have the most objectives in the levels of “knowing,” “applying,” and “reasoning,” respectively. It is hoped that the results will contribute the literature in improvement of science curricula and interpretation of national and international exams.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.3.433
Pages: 433-449
cloud_download 874
visibility 1170
2
Article Metrics
Views
874
Download
1170
Citations
Crossref
2

Scopus

...

The purpose of this study is to evaluate the effects of Instructional Technologies and Material Design (ITMD) course on pre-service mathematics teachers’ attitudes, efficacy beliefs about using concrete materials, and their opinions regarding the material preparation process. A total of 73 pre-service teachers were participated in this study. The scale developed by Bakkaloglu was used to determine efficacy beliefs of pre-service teachers about using concrete materials, and the attitudes scale developed by Cetin, Bagceci, Kinay and Simsek was used to determine the attitudes towards ITMD course. A written form was also used to reveal the opinions of pre-service teachers regarding the material preparation process. The qualitative data collected from 16 pre-service teachers was analyzed with the MAXQDA. Using content analysis, codes and themes were created separately by the researchers and analyzed through several iterations. As a result of this study, positive changes were found in the attitudes and efficacy beliefs of pre-service teachers. The results obtained from the opinions of the pre-service teachers support this positive change. In other words, it is possible to argue that the attitudes of pre-service teachers towards the material development process changed positively with the positive change in the efficacy beliefs about preparing materials after taking the ITMD course.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.3.451
Pages: 451-463
cloud_download 842
visibility 986
3
Article Metrics
Views
842
Download
986
Citations
Crossref
3

Scopus

...

This study describes the development and validation of a psychometrically-sound instrument, the Active Learning Strategies Inventory (ALSI), designed to measure learners’ perceptions of their active learning strategies within an active learning context. Active learning encompasses a broad range of pedagogical practices and instructional methods that connect with an individual learner's active learning strategies. In order to fulfill the study's goals, a conceptual framework on learners’ active learning strategies was developed and proposed, drawing upon the research literature on active learning. The development and construct validation of the Active Learning Strategies Inventory (ALSI), based on the conceptual and methodological underpinnings, involved identifying five scales of learners’ active learning strategies: engagement, cognitive processing, orientation to learning, readiness to learn and motivational orientation. An item pool of 20 items was generated following an extensive review of the literature, standardized card sorting procedures including confirmatory factor analysis and scale validation of a pilot (n = 407) survey. The ALSI scale demonstrated strong internal consistency and reliability with a Cronbach's alpha ranging from 0.81 to 0.87. High item loading scores from the factor analysis provided initial support for the instrument's construct validity of the five-factor model. The ALSI scale provides a reliable and valid method for researchers and academicians who wish to measure learners' perceptions of their active learning strategies within an active learning context. Finally, we discuss the implications and address the limitations and directions for future research.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.7.1.201
Pages: 201-223
cloud_download 1068
visibility 1328
5
Article Metrics
Views
1068
Download
1328
Citations
Crossref
5

Scopus
4

...

The purpose of the current study is to determine pre-service teachers’ perception of individual entrepreneurship and opinions about their critical thinking tendency. As the data collection tools, the Individual Entrepreneurship Perception Scale and the Marmara Creative Thinking Tendencies Scale were used in the current study. The participants of the study are 469 freshman, sophomore, junior and senior students attending the Departments of Pre-school Teacher Education and Primary School Teacher Education. In the analysis of the collected data, frequencies, percentages, independent samples t-test, Mann Whitney U test and correlation analysis were employed. The findings obtained from the analyses have revealed that the pre-service teachers’ individual entrepreneurship perceptions and creative thinking tendencies vary significantly depending on the variables of gender and whether they took a course/seminar on entrepreneurship. The pre-service teachers’ individual entrepreneurship perceptions and creative thinking tendencies were found to be not varying significantly depending on the department attended. The pre-service teachers’ personal entrepreneurship perceptions and creative thinking tendencies were found to be above medium. A highly positive and significant correlation was found between the pre-service teachers’ individual entrepreneurship perception and creative thinking tendency total scores. The pre-service teachers can be encouraged to take the course “Economics and Entrepreneurship” and to participate in certificate programs on entrepreneurship.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.4.591
Pages: 591-606
cloud_download 684
visibility 1077
7
Article Metrics
Views
684
Download
1077
Citations
Crossref
7

Scopus
3

...

Positive attitude towards statistics is a desirable aspect in developing statistical thinking and understanding statistical concept. The attitude towards statistics instrument in previous study on rural school students lacked evidence in the validity analysis. Therefore, there is a need to provide a valid instrument that can assess rural secondary school students’ attitude toward statistics. For this purpose, this study was carried out to investigate the validity and reliability analysis of the Survey Attitude towards Statistics (SATS-36) instrument from a sample of rural secondary school students. The SATS-36 is a 7-point Likert type scale questionnaire, used to measure students’ attitude towards statistics. The SATS-36 instrument was distributed to 217 Tenth grade science stream students from a rural district in Sabah, Malaysia, which comprised of 66 (30.4%) boys and 151 (69.6%) girls. A second order Confirmatory Factor Analysis (CFA) was carried out to analyze the validity of the SATS-36 instrument as well as to confirm the 6-factor model of SATS-36. The reliability of SATS-36 instrument was assessed through the Cronbach’s Alpha value. Overall, the analysis showed that the SATS-36 instrument shows favorable indices for both its validity and reliability. Thus, it can be concluded that the SATS-36 was a valid and reliable instrument for measuring students’ attitude towards statistics among rural science stream secondary school students.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.4.651
Pages: 651-661
cloud_download 1319
visibility 1898
18
Article Metrics
Views
1319
Download
1898
Citations
Crossref
18

Scopus
14

...

The purpose of the current study is to investigate middle school students’ self-regulation skills and vocabulary learning strategies in foreign language. The sampling of the current study consists of 990 5th, 6th, 7th and 8th grade middle school students attending state middle schools in the Mentese district of the city of Mugla, Turkey in school year 2018-2019. As the data collection tools, the Perceived Self-Regulation Scale and the Vocabulary Learning Strategies in Foreign Language Scale were used. In the analysis of the collected data, frequencies, percentages, independent-samples t-test and one-way variance analysis (ANOVA), Post-Hoc Tests (Tukey and Dunnett’s C) and correlation analysis were used. The findings of the present study have revealed that the middle school students’ self-regulation skills and vocabulary learning strategies in foreign language are over the medium value. The middle school students’ self-regulation skills and vocabulary learning strategies in foreign language were found to vary significantly depending on gender, grade level, father-mother attitude and level of interest in English course. A medium, positive and significant correlation was found between the middle school students’ total scores of self-regulation strategies and vocabulary learning strategies in foreign language.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.1.25
Pages: 25-42
cloud_download 1327
visibility 2921
11
Article Metrics
Views
1327
Download
2921
Citations
Crossref
11

Scopus

...

This study aims to identify the effect of metacognitive awareness of reading strategies on self-efficacy perception in reading comprehension of secondary school students and whether self-efficacy perception in reading comprehension of secondary school students differs according to the variables such as their gender and reading habits. In this correlational survey model study, data were collected from the sample of 380 students of 8th grade by using ‘Metacognitive Awareness of Reading Strategies Inventory’ developed by Mokhtari and Reichard and translated into Turkish by Ozturk; and ‘Self-Efficacy Scale in Reading Comprehension’ developed by Epcacan and Demirel were used. The data gathered were evaluated statistically by multivariate analysis of variance (MANOVA) with the help of the SPSS program. As the results of the study, Reading Visual Comprehension, Self-regulation in Reading and Reading Self-confidence subscale scores of self-efficacy perception in reading comprehension, were found to be statistically and significantly larger in the groups that have a tendency to finish books that they start. Moreover, Reading Visual Comprehension, Self-regulation in Reading and Reading Self-confidence subscale scores of self-efficacy perception in reading comprehension, were found to be statistically and significantly larger in the groups that have advanced level of reading habits. Additionally, RSC, SRR and RVC subscale scores of self-efficacy perception in reading comprehension, were found to be significantly different in favor of female participants. General Reading Strategies, Problem Solving Strategies and Supporting Reading Strategies subscales of metacognitive awareness of reading strategies have a positive effect on Reading Visual Comprehension, Self-regulation in Reading and Reading Self-confidence scores of the participants. In other words, metacognitive awareness of reading strategies contributes to self-efficacy perception in reading comprehension of eighth-grade students.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.1.83
Pages: 83-98
cloud_download 1367
visibility 1210
9
Article Metrics
Views
1367
Download
1210
Citations
Crossref
9

Scopus

...

This study aimed to develop an instructional design that focuses on programming teaching for gifted and talented students and to investigate its effects on the teaching process. During the development of the instructional design; the steps of Morrison, Ross and Kemp Instructional Design Model were followed. Embedded experimental design, one of the mixed-method research designs, was used in the modeling of the study. The participants consisted of students studying at the Science and Art Center (BILSEM) (experimental group: 13 girls and 12 boys, control group: 10 girls and 15 boys). While the instructional design developed by the researchers was applied to the gifted and talented students in the experimental group, the standard activities used in Information Technologies and Software Courses at BILSEM were applied to the gifted and talented students in the control group. “Computational Thinking Scale (CTS)”, “Torrance Creative Thinking Test (TCTT-Figural)” and “Computer Programming Self-Efficacy Scale (CPSES)” were used to collect the data of the quantitative phase of the study. Qualitative data were gathered by using interview form, observation forms, and design thinking rubric. Two-Factor ANOVA Test, Bonferroni Adjustment Multiple Comparisons Test, and interaction graphs were used to analyze quantitative data while qualitative data were analyzed by content analysis. The quantitative results of the research showed that the instructional design was effective on students' computational thinking and creative thinking skills, but not on programming self-efficacy. Qualitative findings revealed that the instructional design helped the students learn the computational concepts, use computational applications, and develop computational-perspectives. Also, students improved their design thinking skills to a certain level and expressed that they enjoyed the design thinking process, learned the course content, and experienced some difficulties.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.1.161
Pages: 161-183
cloud_download 1432
visibility 1238
10
Article Metrics
Views
1432
Download
1238
Citations
Crossref
10

Scopus

...

STEM education is a pedagogical philosophy which aims to draw the interrelationship between science, technology, engineering and mathematics to solve complex problems in real life situations. In order to use STEM education to foster students’ learning, the researchers designed STEM activities for middle school students related to the concept of force and motion in three different approaches: a linear model, a jigsaw learning and a stand-alone engineering design activity. To compare the effectiveness of the three approaches, the researchers analysed students’ reasoning and problem-solving scores gained before and after doing the activities. The result showed students participating in the linear model and in the jigsaw learning significantly outperformed those in the stand-alone engineering design activity. In addition, when comparing conceptual development between those attending the linear model and jigsaw learning, the result showed that the former significantly outperformed the latter. It is therefore suggested that to maximise the effectiveness of STEM activities in promoting conceptual understanding as well as reasoning and problem-solving skills, teachers should adopt the linear model. However, when instructional time is limited, the jigsaw learning can be considered as an alternative approach. The stand-alone engineering design activity although can promote students’ enthusiasm to learn, it may not sufficiently lead to the development of reasoning and problem-solving skills as expected.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.1.185
Pages: 185-198
cloud_download 1509
visibility 3054
13
Article Metrics
Views
1509
Download
3054
Citations
Crossref
13

Scopus

...

Kelley’s Discrimination Index (DI) is a simple and robust, classical non-parametric short-cut to estimate the item discrimination power (IDP) in the practical educational settings. Unlike item–total correlation, DI can reach the ultimate values of +1 and ‒1, and it is stable against the outliers. Because of the computational easiness, DI is specifically suitable for the rough estimation where the sophisticated tools for item analysis such as IRT modelling are not available as is usual, for example, in the classroom testing. Unlike most of the other traditional indices for IDP, DI uses only the extreme cases of the ordered dataset in the estimation. One deficiency of DI is that it suits only for dichotomous datasets. This article generalizes DI to allow polytomous dataset and flexible cut-offs for selecting the extreme cases. A new algorithm based on the concept of the characteristic vector of the item is introduced to compute the generalized DI (GDI). A new visual method for item analysis, the cut-off curve, is introduced based on the procedure called exhaustive splitting.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.2.237
Pages: 237 - 258
cloud_download 887
visibility 1096
6
Article Metrics
Views
887
Download
1096
Citations
Crossref
6

Scopus

...